TS 29.405(CT4)
Nq and Nq' Application Protocol (Nq-AP)

This document describes the procedures, messages and information elements over the Nq and Nq' interfaces between
the MME/SGSN and the RCAF to transfer the IMSI/APN information associated to the eNodeB or E-UTRAN cells or
UTRAN Service Area experiencing user plane congestion.